Answer:
See below.
Step-by-step explanation:
You haven't given the list but the square roots of 9 are 3 and -3.
Answer:
y-30 = 3(x-1)
Step-by-step explanation:
Point-slope form of an equation is
y-y1 = m(x-x1) where (x1,y1 ) is a point and m is the slope
We know on day 1 they exercised 30 minutes (1,30) where x is the number of days and y is the minutes. The rate increased 3 minutes each day so m = 3
y-30 = 3(x-1)
-5a^2 - 7a = -a x (5a + 7)
let me know if you have any other questions
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Answer:
The value of a₂₇ is 294
Step-by-step explanation:
a₁₃ = 254
a₃₃ = 654
Now,
a₁₃ = 254 can be written as
a + 12d = 254 ...(1) and
a₃₃ = 654 can be written as
a + 32d = 654 ...(2)
Now, from equation (2) we get,
a + 32d = 654
a + 12d + 20d = 654
254 + 20d = 654 (.°. a + 12d = 254)
20d = 654 - 254
20d = 400
d = 400 ÷ 20
d = 20
Now, for the value of a put the value of d = 20 in equation (1)
a + 12d = 254
a + 12(20) = 254
a + 240 = 254
a = 254 - 240
a = 14
Now, For a₂₇
a₂₇ = a + 26d
a₂₇ = 14 + 9(20)
a₂₇ = 14 + 180
a₂₇ = 294
Thus, The value of a₂₇ is 294
<u>-TheUnknownScientist</u>
2x² + 5x = -2
or, 2x²+5x+2=0
or,2x²+4x+x+2=0
or,2x(x+2)+1(x+2)=0
or,(x+2)(2x+2)=0
Two values can be found:
(x+2)=0 (2x+1)=0
or,x= - 2 or,2x= -1
or, x= -1/2